Window ventilator



April 19, 1955 w. A. MEADOR WINDOW VENTILATOR Filed July 28. 1950 I W/LL/AM A. MEADOR IN VEN TOR.

United States Patent Office 2,706,443 Patented Apr. 19, 1955 WINDOW VENTILATOR William A. Meador, Decatur, Ill. Application July 28, 1950, Serial No. 176,321 3 Claims. (Cl. 9899.1)

This invention relates to window ventilators, and, without limitation thereto, has more particularly to do with one of that kind, which, in use, is placed on the windowsill, between and spanning the opposite sides of the window-sash of a window opening in a building such as a residence or office, so as to receive air therethrough and into the room in which the window is located.

An object of the invention is to simplify and make practical and efficient a ventilating structure of this type having easily and effectively manipulable spring insert elements or fastening devices to detachably yet securely engage portions of the window sash, and having means for detachably engaging, optionally at the will of the user, the lower horizontal edge portion of the windowframe.

A further object is to provide removable screen means for excluding insects and dirt particles from the room interior, and a still further object is to provide means for the directional and quantitative admission of air into the room.

Other objects and advantages to be attained will hereinafter more fully appear in the following description.

Generally stated, the invention consists in making the device in substantially shell-like elongated rectangular and partly convex body form, with an open bottom surface and adapted to protrude exteriorly of the window and to removably engage a screen element covering its entire exposed bottom surface. It further consists in the provision of a louver member pivotally mounted in that face of the device which is interiorly of the room.

A practical adaptation of the invention is illustrated in the accompanying drawings, in which:

Figure 1 is a top plan view,

Figure 2 is an elevational view showing the louver member mounted and in closed position.

Figure 3 is a bottom plan view showing the screen ele ment in position, and the bottom edge of the louver member.

Figure 4 is a sectional view taken on the line 4--4 of Figure 2 and showing a fragmentary section of the window-frame, and with a fragmentary showing of the window-sash and the interior and exterior window sills, and,

Figure 5 is a somewhat enlarged fragmentary sectional view of the outer tip portion of the body form.

Figure 6 is a sectional view showing one of the two spring urged latch type pivotal pin elements for retaining the louver in position within the ventilator frame and the inner faces of the window sash.

Referring to the drawings in detail, the numeral 10 designates, generally, the rectangular body of rust-proof and corrosion resistant material throughout, for example, stainless steel, or else a suitable plastic material having requisite lightness with strength and durability for the purpose intended.

As shown, the upper portion 11 of the body 10 is flat in form, its front part having the convex shaped portion 12 terminating at its foremost tip to form the horizontal support part 13 which serves both as a reinforcement means for the convex shaped portion 12 and as a support means for the screen element which will later be explained. The rear edge of the upper portion 11 is formed in the longitudinal upwardly extending securing part 14 having a plurality of relatively small holes 15 spaced therein and through which small screws or other suitable securing means may be inserted in case it is desired to secure the part 14 to the lower inner edge of the window-frame in the position as shown at A in Figure 4.

The transverse end walls 16 and 17 of the body 10 have formed from their lower edge the inturned support parts 18 and 19, which, together with the support part 13, serve to supportedly engage the screen element 20. The screen element 20 when positioned as shown especially in Figures 2 and 4, seals off the room interior against the entrance of insects and such dirt particles as might be drawn into the room by the normal indraft of air through the device.

As shown, the longitudinal side and transverse end members of the frame 21 are of substantially U-shaped cross section, as at B in Figure 5, and the wire mesh screen 22 is interposed in and. securely engaged by said frame 21 for the purpose herein described.

In the form shown in the Figures 2, 3, 4 and 6 the louver member 23 has integrally mounted on its opposite ends a substantially flat spring latch type pivotal pin element 24. The spring elements 24a urge the pivotal pin elements 25 to protrude through and pivotally engage suitable openings provided therefor in end walls 16 and-17, to enable the rotation of the louver member 23 on its axis so that the same may be adjusted at the will of the user, to either open or close the louver, as for example, at C shown especially in Figure 4 wherein the circularly arranged arrows together with the dotted lines serve to indicate the rotating action of the louver member in said opening or closing operation.

Of importance in the installation of the device for use, are the two aforesaid spring controlled pin members 25, which, protruding outwardly from said end walls 16 and 17, are adapted to releasably engage suitable and correspondingly positioned holes in the opposing inner faces of the window sash, thereby to removably fix the position of the invention in the window opening, the device being made in such standard sizes as fit into and completely fill various window openings in a neat and workmanlike manner.

It will appear obvious that the louver member may be rotated to positions to direct the incoming air upwardly, downwardly or horizontally into the room interior as may be preferred, and the broken arrows shown in Figure 4 indicate the air course into and through the screen element 20.

The novel construction of the device of the present invention not only screens the incoming air for safety and cleanliness, but it provides as well for the stoppage of air ingress on occasion, or, for the admission of air in selective quantities, and, either upwardly, horizontally, or downwardly directed. Provision is made, too, for shielding the room interior from the elements of weather in that there is complete closure around all fitted sides of the device, the sole air ingress being through the screen element, while the structure overlaps the outer windowsill, thus providing ample and secure coverage for the screen element. And too, the device is readily and easily installed in or removed from a window opening.

While the illustrated structure is a practical exemplification of the invention, modification and change is contemplated within the spirit and scope of the appended claims. The invention is not, therefore, limited to the specific construction and arrangement shown.

What is claimed is:

1. A window ventilator of the character herein described, comprising in combination a rigid open bottomed body having transverse ends and a top and an integral upwardly extending securing part at one longitudinal side of said top arranged for securing said body to a window frame, said body having rigid inwardly extending supporting portions along the bottom of the longitudinal side and transverse ends to receive and support the marginal portions of a frame of a screen element within the lower area of the hollow body, a louver member rotatably mounted between the transverse ends and a rotatably operated louver retaining element mounted on the louver ends, each of said louver retaining elements having a pin which is spring controlled as to thrust action and insertable in suitable openings into the transverse ends of the body and into corresponding positioned holes in a window sash.

2. A window ventilator of the character herein described, comprising a rigid open bottomed rectangular body having transverse ends and a substantially convex surface on one longitudinal side merging into a top for said body, said top having along one longitudinal edge an integral upwardly extending securing part arranged to detachably engage one edge of a window frame, integral inwardlv extending supporting portions on said longitudinal side and transverse ends, a screen element having a frame, said frame being supported by said supporting portions, a rotatably operable louver member mounted in and between the transverse ends by spring controlled pins fixed to the opposite ends of the louver and adapted for engagement with a suitable opening in each of said transverse ends and for further engagement with like positioned suitable holes in a window sash for the purpose of installing the device for use.

3. A window ventilator of the character herein described, comprising in combination a rigid open bottomed rectangularly shaped and relatively shallow body having one longitudinal side formed substantially convex, said convex longitudinal side merging into a top for the rectangular body, transverse ends for said body, an inwardly projecting shelf formed on the bottom of said longitudinal side and transverse ends, a screen element having a frame, said frame of said screen element being supported by said shelf, said frame and screen element substantially closing the open bottom of the body, a rotatable louver member having slidable pins on its opposite ends for mounting the louver in and between the transverse ends and for engagement with suitable holes in a window sash for the purpose of installing the device therein.

References Cited in the file of this patent UNITED STATES PATENTS 660,510 Heptinstall Oct. 23, 1900 983,989 Franke Feb. 14, 1911 1,855,396 Irving Apr. 26, 1932 1,924,411 Moser Aug. 29, 1933 2,405,248 Weller Aug. 6, 1946 2,531,281 Kubatzy Nov. 21, 1950 

